SL point team leader selects the tentative location of the sling load point using the following criteria: SL point will be located no less than 100 meters from the nearest active TDP in the formation for unlike or unknown aircraft types. SL point can be located no less than 80 meters from the nearest active TDP in the formation if all the aircraft are alike. (“Like A/C” means same size TDP.) Diameter of the SL point is determined by four factors; Size of the aircraft, Day or night operation, Pilot/unit proficiency, and Atmospheric conditions.